/// <summary>
/// 适配优惠券
/// </summary>
/// <returns></returns>
public async Task <string> SelectCouponAsync()
{
var workRules = new RulesEngine.Models.WorkflowRules();
workRules.WorkflowName = "优惠券";
var rules = new List <Rule>();
foreach (var coupon in _userCoupons.Where(s => s.BeginTime <DateTime.Now && s.EndTime> DateTime.Now))
{
var rule = new Rule
{
RuleName = coupon.Name,
SuccessEvent = coupon.Code,
//ErrorMessage = "规则应用失败",
ErrorType = ErrorType.Error,
RuleExpressionType = RuleExpressionType.LambdaExpression,
Expression = coupon.Expression
};
rules.Add(rule);
}
workRules.Rules = rules;
var rulesEngine = new RulesEngine.RulesEngine(new WorkflowRules[] { workRules }, _logger, new ReSettings());
var ruleResults = await rulesEngine.ExecuteAllRulesAsync("优惠券", _order, _user, _goodses);
// var valueCoupons = new List<string>();
//处理结果
var discountCoupons = new StringBuilder();
foreach (var ruleResult in ruleResults)
{
if (ruleResult.IsSuccess)
{
discountCoupons.AppendLine($"可以使用的优惠券 “{_userCoupons.SingleOrDefault(s => s.Code == ruleResult.Rule.SuccessEvent)?.Name}”, Code是：{ruleResult.Rule.SuccessEvent}");
//valueCoupons.Add(ruleResult.Rule.SuccessEvent);
}
else
{
Console.WriteLine(ruleResult.ExceptionMessage);
}
}
//resultList.OnSuccess((eventName) =>
//{
// discountOffered += $"可以使用的优惠券“{userCoupons.SingleOrDefault(s => s.Code == eventName)?.Name}”,Code是：{eventName} ";
//});
ruleResults.OnFail(() =>
{
discountCoupons.AppendLine("您没有适合的优惠券！");
});
return(discountCoupons.ToString());
}
public async Task <string> Get()
{
var workRules = new RulesEngine.Models.WorkflowRules();
workRules.WorkflowName = "折扣";
workRules.Rules = new List <Rule>
{
new Rule
{
RuleName = "活动一",
SuccessEvent = "10",
ErrorMessage = "One or more adjust rules failed.",
ErrorType = ErrorType.Error,
RuleExpressionType = RuleExpressionType.LambdaExpression,
Expression = "input1.country == \"india\" AND input1.loyalityFactor <= 2 AND input1.totalPurchasesToDate >= 5000"
},
new Rule
{
RuleName = "活动二",
SuccessEvent = "20",
ErrorMessage = "One or more adjust rules failed.",
ErrorType = ErrorType.Error,
RuleExpressionType = RuleExpressionType.LambdaExpression,
Expression = "input1.country == \"india\" AND input1.loyalityFactor >= 3 AND input1.totalPurchasesToDate >= 10000"
},
};
var rulesEngine = new RulesEngine.RulesEngine(new WorkflowRules[] { workRules }, _logger, new ReSettings());
var resultList = await rulesEngine.ExecuteAllRulesAsync("折扣", new Country
{
loyalityFactor = 5,
totalPurchasesToDate = 20000
});
var discountOffered = "";
resultList.OnSuccess((eventName) =>
{
discountOffered = $"Discount offered is {eventName} % over MRP.";
});
resultList.OnFail(() =>
{
discountOffered = "The user is not eligible for any discount.";
});
return(discountOffered);
}